UK government official: Extension of Brexit implementation phase is another option

According to a senior UK government official, as cited by Reuters, an extension of Brexit transition period is an option, which is something that has come up in negotiations in recent days. 

Additional quotes:

   •  Key point is that we don't expect any implementation of the extension.
   •  Wants to move on with talks and wants a deal done in autumn.
   •  Very clear that we need to find a solution to Irish backstop.